165260054552245 has 16 divisors (see below), whose sum is σ = 198359889072048. Its totient is φ = 132176164700160.

The previous prime is 165260054552233. The next prime is 165260054552261. The reversal of 165260054552245 is 542255450062561.

It can be written as a sum of positive squares in 8 ways, for example, as 18592671334084 + 146667383218161 = 4311922^2 + 12110631^2 .

It is not a de Polignac number, because 165260054552245 - 2¹⁵ = 165260054519477 is a prime.

It is a super-2 number, since 2×165260054552245² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165260054552192 and 165260054552201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398955477 + ... + 399369493.

It is an arithmetic number, because the mean of its divisors is an integer number (12397493067003).

Almost surely, 2^{165260054552245} is an apocalyptic number.

It is an amenable number.

165260054552245 is a deficient number, since it is larger than the sum of its proper divisors (33099834519803).

165260054552245 is a wasteful number, since it uses less digits than its factorization.

165260054552245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433080.

The product of its (nonzero) digits is 14400000, while the sum is 52.

The spelling of 165260054552245 in words is "one hundred sixty-five trillion, two hundred sixty billion, fifty-four million, five hundred fifty-two thousand, two hundred forty-five".